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Add 8/12 and 3/7

8/12 + 3/7 is 23/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 7 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    8/12 = 8 × 7/12 × 7 = 56/84
  3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
    3/7 = 3 × 12/7 × 12 = 36/84
  4. Add the two fractions:
    56/84 + 36/84 = 56 + 36/84 = 92/84
  5. After reducing the fraction, the answer is 23/21
  6. In mixed form: 12/21

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